59 New Yorker Differential Oil
CVAN59NY
Posted 2021-06-16 7:22 PM (#612853)
Subject: 59 New Yorker Differential Oil


Member

Posts: 6

Hi everyone,

Does anyone have any recommendations for rear differential oil for a 1959 Chrysler New Yorker (8.75)? The manual says 90, I'm just wondering if anyone has any experience with specific brands, as I've never changed this fluid before (pardon my inexperience).

Thanks in advance.
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b5rt
Posted 2021-06-16 8:22 PM (#612855 - in reply to #612853)
Subject: Re: 59 New Yorker Differential Oil



Expert

Posts: 2519
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Location: central Illinois		I've always used 80w-90 Non-synthetic gear lube. Grab 2 quart bottles and you're set.
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1960fury
Posted 2021-06-17 9:54 AM (#612863 - in reply to #612853)
Subject: Re: 59 New Yorker Differential Oil



Expert 5K+

Posts: 7401
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Location: northern germany		Non-Sure Grip, synthetic multi-viscosity, as recommended by Mopar Performance. Synthtetics reduce wear and rolling-resistance. 350+K miles on mine, still like new, no signs of wear. Used synthetic since late 80s, or early 90s.
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